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Slightly-viscous emulsion pressure-sensitive adhesive and preparation method thereof

A hydraulic and slightly viscous technology, applied in the direction of adhesive types, ester copolymer adhesives, etc., to achieve the effect of saving costs, reducing pollution, and saving glue mixing processes

Active Publication Date: 2016-02-10
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes a solution to the defects of using organic solvents or two-components in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0042] 2-Ethylhexyl Acrylate 37.6

[0043] Butyl acrylate0

[0044] Acrylic 1.6

[0045] N-methylolacrylamide 0.4

[0046] Allyl methacrylate 0.4

[0047] Nonylphenol polyoxyethylene (4) ether ammonium sulfate 0.2

[0048] Nonylphenol polyoxyethylene (10) ether 0.04

[0049] Ammonium persulfate 0.2

[0050] Sodium bicarbonate 0.2

[0051] Dimethylethanolamine 0.4

[0052] Deionized water 58.96.

[0053] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0054] (1) Mix 40% deionized water, 60% ammonium persulfate, 40% nonylphenol polyoxyethylene (4) ether ammonium sulfate and all nonylphenol polyoxyethylene (10) ether, acrylic acid-2 - Ethylhexyl...

Embodiment 2

[0059] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0060] 2-Ethylhexyl Acrylate 20

[0061] Butyl acrylate 18

[0062] Acrylic 1.2

[0063] N-methylolacrylamide 0.4

[0064] Allyl methacrylate 0.4

[0065] Nonylphenol polyoxyethylene (4) ether ammonium sulfate 0.28

[0066] Octylphenol polyoxyethylene (10) ether 0.08

[0067] Ammonium persulfate 0.16

[0068] Sodium bicarbonate 0.16

[0069] 25% ammonia water 0.3

[0070] Deionized water 59.02.

[0071] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0072] (1) Mix 50% deionized water, 50% ammonium persulfate, 28.6% nonylphenol polyoxyethylene (4) ether ammonium sulfate, and all octylphenol polyoxyethylene (10) ether, acrylic acid- Add 2-ethylh...

Embodiment 3

[0077] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0078] 2-Ethylhexyl Acrylate 28

[0079] Butyl Acrylate 10

[0080] Acrylic 0.8

[0081] N-methylolacrylamide 0.8

[0082] Trimeric isocyanate triacrylate 0.4

[0083] Sodium dodecyl diphenyl ether disulfonate 0.28

[0084] Ammonium persulfate 0.12

[0085] Sodium bicarbonate 0.12

[0086] 25% ammonia water 0.2

[0087] Deionized water 59.28.

[0088] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0089] (1) Mix 45% deionized water, 28.6% sodium dodecyl diphenyl ether disulfonate, 33.3% ammonium persulfate and all 2-ethylhexyl acrylate, butyl acrylate, acrylic acid, Add N-methylol acrylamide and isocyanate triacrylate into an emulsification t...

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Abstract

The invention discloses a slightly-viscous emulsion pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive is prepared from 2-ethylhexyl acrylate, butyl acrylate, acrylic acid, N-Methylolacrylamide and a cross-linking monomer by employing a pre-emulsification semi-continuous polymerization technology for polymerization. The safety and environment friendliness problems of a slightly-viscous pressure-sensitive adhesive because of contained organic solvents in the prior art are solved. An adhesive tape prepared from the slightly-viscous emulsion pressure-sensitive adhesive possesses the peeling strength less than 0.15 N / 25 mm at 180 DEG C, the slightly-viscous emulsion pressure-sensitive adhesive is safe and environment-friendly, and is capable of replacing a part of solvent type slightly-viscous emulsion pressure-sensitive adhesives and being applied to corresponding fields.

Description

technical field [0001] The invention relates to the preparation of a pressure-sensitive adhesive, in particular to a single-component slightly viscous acrylate emulsion pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives can generally be divided into ultra-high-viscosity pressure-sensitive adhesives, high-viscosity pressure-sensitive adhesives, medium-viscosity pressure-sensitive adhesives, low-viscosity pressure-sensitive adhesives and slightly viscous pressure-sensitive adhesives according to their peel strength. Widely used in production, such as electronic protection tape, pressure-sensitive adhesive for protecting materials with smooth surface, etc., its 180o peel strength is usually less than 0.20N / 25mm. At present, the slightly viscous pressure-sensitive adhesives on the market are generally solvent-based pressure-sensitive adhesives, and the solvent used is ethyl acetate or a mixed solvent of ethyl ...

Claims

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Application Information

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IPC IPC(8): C09J133/08C08F220/18C08F220/06C08F220/58C08F2/30C08F2/26
Inventor 冯小平何伟武鹏李胜华姜云刚
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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